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Dictionary of Medieval Names
from European Sources

Eilika f. Proto-Germanic *hailagaz 'holy, bringing health' or a pet form of any name beginning with Heil-, such as Heilwig.

Austria
Latin
c12thC Heilica (nom) GCSStFl p. 193
Cite as: S.L. Uckelman. "Eilika". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Eilika.